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Finding the Fourth Proportional to 485,959.32, 670,591.44 and 304,664.04

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Solution

The fourth proportional to 485,959.32, 670,591.44 and 304,664.04 is: 420,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,959.32 : 670,591.44 = 304,664.04 : x
  2. Step 2: Convert to fraction form
    485,959.32/670,591.44 = 304,664.04/x
  3. Step 3: Cross multiply
    485,959.32x = 670,591.44 × 304,664.04
  4. Step 4: Simplify right side
    485,959.32x = 204,305,097,299.82
  5. Step 5: Solve for x
    x = 204,305,097,299.82/485,959.32
  6. Step 6: Final answer
    x = 420,416.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.